Search the British Library, the National Library of Scotland, and university research libraries in the United Kingdom and Ireland.
- CRL (Center for Research Libraries)
Newspapers, journals, documents, archives, and other resources from a global network of sources. You can use RACER to request materials from CRL.
A partnership of academic and research institutions offering a collection of millions of titles digitized from libraries around the world.
- Library of Congress Online Catalog
A directory of libraries throughout the world.
- Repositories of Primary Sources
A listing of over 4000 websites describing holdings of manuscripts, archives, rare books, historical photographs, and other primary sources, indexed by region.
OCLC's catalogue of books and other materials in libraries worldwide.